Grammar Rule in 30 Seconds
Most English nouns add '-s' to become plural, but 'Rule Breakers' change their spelling entirely without adding an 's'.
- Vowel changes: 'man' becomes 'men' and 'foot' becomes 'feet'.
- Special endings: 'child' becomes 'children' and 'ox' becomes 'oxen'.
- No change: some words like 'sheep' and 'fish' stay exactly the same.
Overview
-s 或 -es 就能表示“多个”。例如 cat 变成 cats，book 变成 books。这看起来很简单，对吧？但英语中有一些“不守规矩”的家伙，它们被称为不规则复数名词（Irregular Plural Nouns）。man (男人), child (孩子), foot (脚), tooth (牙齿)。如果你说 two mans 或 two childs，虽然别人能听懂，但听起来会很不地道。掌握这些规则，能让你在咖啡厅点餐、和外教交流或者在朋友圈发动态时，显得更加自信和专业。不用担心，这些词虽然是不规则的，但数量不多，只要把它们当作“固定搭配”记下来，很快就能熟练运用！man 到 men，foot 到 feet，这些都是当时留下来的“活化石”。-s，但在英语中，这是语法结构的一部分。理解这一点很重要：在英语中，名词的单复数不仅影响名词本身，还会影响后面的谓语动词（Subject-Verb Agreement）。例如，The child is playing（单数）和 The children are playing（复数）。在中文里，无论是一个孩子还是多个孩子，动词“玩”都是一样的。所以，当你学习这些不规则名词时，不仅要记住名词的变化，还要记住它们后面跟着的动词也要相应改变。这正是英语语法的精髓所在。man | men | a 变 e | The men are here. |woman | women | o 变 i | The women are talking. |foot | feet | oo 变 ee | My feet are cold. |tooth | teeth | oo 变 ee | Brush your teeth. |mouse | mice | ou 变 i | There are mice here. |child | children | 加 -ren | The children are happy. |sheep | sheep | 不变 | I see ten sheep. |person | people | 词汇替换 | Many people like tea. |people 和 children，几乎每天都会用到。记住这个口诀：“元音变，后缀加，有的词，不用变，还有词，换个脸。”- 1谈论人或群体：比如你在商场看到一群人，你会说
There are many people。如果你在讨论家庭，你会说I have two children。注意，这里绝对不能说two childs。 - 2描述身体部位：当你去按摩或者看医生时，你会用到
feet和teeth。比如My teeth hurt（我的牙齿疼）。 - 3描述动物：在农场或者动物园，如果你看到一群羊，要说
Look at those sheep，而不是sheeps。 - 4职场与社交：在微信上和朋友聊天，提到同事时，我们会说
The men in our office或者The women in our team。
- 1过度概括（Overgeneralization）：因为我们习惯了
-s规则，所以看到man就想加s变成mans。这是因为中文没有复数变化，我们的大脑会自动寻找最简单的“加一个词尾”的逻辑。记住，这是错误的！ - 2漏掉动词的一致性：在中文里，我们说“孩子们在玩”和“孩子在玩”，“在玩”这个动词是不变的。但在英语里，
The child is playing和The children are playing中is和are的区别非常关键。很多同学只改了名词，却忘了改动词。 - 3混淆
person和people：中文里我们说“三个人”，英语里很多人会习惯性说three persons。虽然在极正式的法律文件里可以见到persons，但在日常生活中，people才是person的标准复数形式。用people会让你听起来更自然。
-s 或 -es | 内部元音改变或词形替换 |cat -> cats | man -> men |- 1问：
fish的复数是fishes吗？
fish 的复数就是 fish。比如 I caught three fish。fishes 只有在指代“不同种类的鱼”时才会用到，初学者通常不需要担心这个。- 1问：为什么
women的读音和woman不一样？
woman 读作 /ˈwʊmən/，而 women 读作 /ˈwɪmɪn/。虽然拼写只差一个字母，但发音确实不同，这也是英语学习中需要刻意练习的地方。- 1问：如果我记不住这些词怎么办？
feet, feet, my feet，很快就会形成肌肉记忆。加油！Common Irregular Plural Patterns
| Singular | Plural | Pattern Type | Example Sentence |
|---|---|---|---|
|
Man
|
Men
|
Vowel Change (a -> e)
|
The men are working.
|
|
Woman
|
Women
|
Vowel Change (o -> e sound)
|
Three women entered.
|
|
Child
|
Children
|
Suffix (-ren)
|
The children play.
|
|
Foot
|
Feet
|
Vowel Change (oo -> ee)
|
My feet are cold.
|
|
Tooth
|
Teeth
|
Vowel Change (oo -> ee)
|
White teeth are nice.
|
|
Mouse
|
Mice
|
Vowel Change (ou -> i)
|
The mice like cheese.
|
|
Sheep
|
Sheep
|
No Change
|
Ten sheep are eating.
|
|
Fish
|
Fish
|
No Change
|
I see many fish.
|
|
Person
|
People
|
Suppletion (New Word)
|
People are kind.
|
|
Goose
|
Geese
|
Vowel Change (oo -> ee)
|
The geese fly away.
|
Meanings
Irregular plural nouns are nouns that do not follow the standard rule of adding '-s' or '-es' to the end of the word to indicate more than one.
Vowel Mutation
Changing the internal vowel sound of the word to indicate plurality.
“My left foot hurts, but my feet are usually fine.”
“That man is tall, but those men are even taller.”
The '-en' Ending
Adding a suffix other than 's', specifically '-en' or '-ren'.
“I have one child and she has three children.”
“The farmer uses an ox to plow, but he has four oxen in total.”
Zero Plural
Nouns that have the exact same form for both singular and plural.
“I saw one sheep on the hill.”
“There are fifty sheep in the field.”
Reference Table
| 单数 | 复数 | 例句 |
|---|---|---|
|
man
|
men
|
Two men are here.
|
|
woman
|
women
|
Three women are talking.
|
|
child
|
children
|
My children love to play.
|
|
foot
|
feet
|
My feet are tired.
|
|
tooth
|
teeth
|
I brush my teeth daily.
|
|
mouse
|
mice
|
There are many mice in the field.
|
|
goose
|
geese
|
Look at those geese swimming!
|
|
person
|
people
|
Many people are waiting.
|
|
ox
|
oxen
|
The farmer has two oxen.
|
正式程度
The children are currently attending their lessons. (Education / Family)
The children are playing outside. (Education / Family)
The kids are having fun. (Education / Family)
The rugrats are wilding. (Education / Family)
不规则复数名词：那些“叛逆”的名词
元音变化
- man men
- foot feet
- mouse mice
加 '-en'
- child children
- ox oxen
无变化
- sheep sheep
- fish fish
特殊情况
- person people
规则复数 vs. 不规则复数
英语名词变复数流程图
这个名词在“不规则复数”列表里吗（比如，“man”、“child”、“foot”）？
这个名词以 -s, -x, -ch, -sh, -z 结尾吗？
这个名词以辅音字母 + -y 结尾吗？
常见不规则复数名词分类
人物
- • man → men
- • woman → women
- • child → children
- • person → people
身体部位
- • foot → feet
- • tooth → teeth
动物
- • mouse → mice
- • goose → geese
- • ox → oxen
- • sheep → sheep
- • fish → fish
按水平分级的例句
I see three men.
I see three men.
The children are happy.
The children are happy.
I have two feet.
I have two feet.
Look at the white sheep.
Look at the white sheep.
How many people are in the room?
How many people are in the room?
Brush your teeth every morning.
Brush your teeth every morning.
There are many mice in the old house.
There are many mice in the old house.
We saw five deer in the forest.
We saw five deer in the forest.
The women in the office are very professional.
The women in the office are very professional.
Geese fly south for the winter.
Geese fly south for the winter.
The farmer bought several oxen for the heavy work.
The farmer bought several oxen for the heavy work.
I caught three large fish yesterday.
I caught three large fish yesterday.
The children's playground was recently renovated.
The children's playground was recently renovated.
Many people believe that technology is a double-edged sword.
Many people believe that technology is a double-edged sword.
The mice were used in a controlled laboratory experiment.
The mice were used in a controlled laboratory experiment.
A series of unfortunate events led to the company's downfall.
A series of unfortunate events led to the company's downfall.
The criteria for the scholarship are quite stringent.
The criteria for the scholarship are quite stringent.
The phenomena observed during the eclipse were breathtaking.
The phenomena observed during the eclipse were breathtaking.
The alumni of the university gathered for the gala.
The alumni of the university gathered for the gala.
The data suggest that the market is stabilizing.
The data suggest that the market is stabilizing.
The brethren of the lodge met in secret to discuss the charter.
The brethren of the lodge met in secret to discuss the charter.
The various fishes of the Amazon basin show incredible diversity.
The various fishes of the Amazon basin show incredible diversity.
The stimuli provided during the trial were insufficient to elicit a response.
The stimuli provided during the trial were insufficient to elicit a response.
The cacti in the botanical garden are over a century old.
The cacti in the botanical garden are over a century old.
容易混淆
Learners try to add 's' to everything because 95% of English nouns work that way.
Learners think 'people' is a different word entirely rather than the plural of 'person'.
Learners see 'fishes' in books and get confused.
常见错误
Two mans
Two men
Three childs
Three children
My tooths are white.
My teeth are white.
I see many sheeps.
I see many sheep.
The people is here.
The people are here.
The childrens are playing.
The children are playing.
Ten fishes
Ten fish
Two mouses
Two mice
The data is...
The data are...
句型
There are many ___ in the ___.
My ___ are very ___.
I saw a group of ___ walking ___.
The ___ in this area are known for ___.
Real World Usage
I need to get my teeth cleaned.
These shoes are too small for my feet.
The children had so much fun today! 🎈
I managed a team of twenty people.
Many women are leading new tech companies.
I'll have the grilled fish, please.
多听多说
children 或 feet 会帮助你自然记住它们。试着大声重复！比如，当你走路累了，可以说 My feet are tired.
千万别加 '-s'！
childs、mans、foots 或者 peoples 都是不对的。这些词很早就打破了加 '-s' 的规则，所以别想着把 '-s' 再加回去了！比如，千万别说 I have two childs.而是
I have two children.
抽认卡是你的好帮手
man），另一面写复数（men）。每天练习，直到你脱口而出！你甚至可以画些小图。比如，一面画一个男人，一面画两个男人，然后写 man / men。'People' 和 'Persons'
persons 在非常正式或法律文件中是正确的，但日常生活中几乎所有人都用 people。用 people 会让你听起来更自然、更友好！比如，你想问有多少人来派对，你会说 How many people are coming?而不是
How many persons are coming?
Smart Tips
Check if it's 'foot' or 'tooth'. These are the most common body parts that don't use 's'.
Always use 'are', never 'is'.
Remember that 'sheep', 'fish', and 'deer' are the 'No-Change Trio'.
If it's not on the 'Top 10' list (man, woman, child, foot, tooth, mouse, sheep, fish, person, goose), it's probably regular.
发音
Woman vs. Women
The first 'o' in 'woman' sounds like 'u' in 'put'. In 'women', the 'o' sounds like 'i' in 'sit'.
The 'th' in Teeth
The 'th' is unvoiced, like in 'think'.
Plural Emphasis
I said two MEN, not one.
Stress the irregular plural to clarify quantity.
记住它
记忆技巧
Remember: 'One child, many children; one foot, two feet. No 's' is needed for the people you meet!'
视觉联想
Imagine a giant 'S' being chased away by a group of men and children. The 'S' is crying because it's not allowed to join their group.
Rhyme
Double 'O' becomes double 'E', for teeth and feet and geese you see!
Story
A man and a woman took their child to a farm. They saw a sheep eating a fish. Suddenly, a mouse ran over their feet! (All these nouns are irregular).
Word Web
挑战
Look around the room or out a window. Find at least three things that use irregular plurals (e.g., people, feet, teeth) and say a sentence for each.
文化笔记
Using 'persons' instead of 'people' makes you sound like a police officer or a lawyer. 'People' is much friendlier.
In some UK dialects, you might hear 'me feet' instead of 'my feet', but the plural 'feet' remains the same.
Scientists use 'fishes' to talk about different species, but a fisherman would always say 'I caught ten fish'.
Most irregular plurals come from Old English, which had a much more complex system of noun endings and vowel changes.
对话开场白
How many children do you want to have in the future?
Do you think people are generally kind?
Have you ever seen any wild deer or sheep?
What do you do to keep your teeth healthy?
日记主题
常见错误
Test Yourself
My two ____ are playing in the garden.
Find and fix the mistake:
There are many mans in the room.
选择正确的句子：
Score: /3
练习题
8 exercisesI have two [child].
Which sentence is correct?
Find and fix the mistake:
My tooths are white.
Mouse
are / sheep / field / the / in / ten
The plural of 'fish' is always 'fishes'.
A: Look at those ___! B: Yes, they are flying south for winter.
Score: /8
Practice Bank
11 exercisesI saw two white ____ swimming in the pond.
My tooths hurt after eating candy.
哪个句子是正确的？
Translate into English: 'Ella tiene dos niños.'
把这些词重新排列成一个句子：
将单数名词与其复数形式匹配：
The farmer bought two new ____ for his field.
I need to wash my both foot.
There are many ____ at the concert.
Translate into English: 'Vi a tres hombres y dos mujeres.'
把这些词重新排列成一个句子：
Score: /11
常见问题 (8)
English is a mix of languages. 'Man' is an old Germanic word that uses an ancient plural system. 'Pan' is newer and follows the modern 's' rule.
Yes, but only if you are talking about different species of fish (e.g., 'The fishes of the Pacific Ocean'). For eating or counting, use `fish`.
It is plural. You must use `are` or `were`. 'The people are happy.'
The standard plural is `people`. You can use `persons` in very formal or legal writing, but it sounds strange in conversation.
Both `mice` and `mouses` are accepted for technology, but `mice` is more common.
Focus on the sound. 'Woman' (singular) sounds like 'man' at the end. 'Women' (plural) sounds like 'WIM-min'.
The only other common one is `oxen`. Words like `brethren` exist but are very old-fashioned.
In Old English, some nouns didn't have a plural ending. Sheep is one of the few that stayed that way for over 1,000 years!
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Plurales regulares (-s, -es)
Spanish has almost no internal vowel-changing plurals.
Pluriels irréguliers (-ail -> -aux)
French irregulars often change the end of the word, not the middle vowel.
Umlaut Plurals
German still uses this rule for thousands of words, while English only kept a few.
No plural marking
English requires a change (regular or irregular), Japanese does not.
Broken Plurals (جمع التكسير)
Arabic broken plurals are much more common and complex than English ones.
Measure words / No plural
English changes the noun; Chinese changes the surrounding words.
Learning Path
Prerequisites
Learn These First
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